Prevalence and risk factors of psychiatric symptoms and diagnoses before and during the COVID-19 pandemic: findings from the ELSA-Brasil COVID-19 Mental Health Cohort by Brunoni, AR, Suen, PJC, Bacchi, PS, Razza, LB, Santos, L, Santos, I, Valiengo, L, Gallucci-Neto, J, Moreno, M, Felix, L, de Sousa, J, Viana, M, Forte, P, Cardoso, M, Bittencourt, M, Pelosof, R, de Siqueria, L, Fatori, D, Bellini, H, Bueno, P, Passos, I, Nunes, M, Salum, G, Bauermeister, S, Smoller, J, Lotufo, P, Bensenor, IM